扁桃酸烯醇 | 127645-81-2

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 扁桃酸烯醇
• 英文名称: mandelic acid enol
• 英文别名: Tri-hydroxyphenylethylene；2-phenylethene-1,1,2-triol
• CAS: 127645-81-2
• 化学式: C₈H₈O₃
• 分子量: 152.15
• InChiKey: MBGHHXWAKSEHMA-UHFFFAOYSA-N

物化性质

• 沸点：
  298.8±40.0 °C(Predicted)
• 密度：
  1.388±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.3
• 重原子数：
  11
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  60.7
• 氢给体数：
  3
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  扁桃酸烯醇 在 biphosphate buffer 作用下， 以 水 为溶剂， 生成 扁桃酸
  参考文献：
  名称：

  水溶液中的扁桃酸酮-烯醇系统。苯羟基乙烯酮和苯羧卡宾水合生成烯醇

  摘要：

  苯重氮乙酸和苯甲酰甲酸的甲酯、正丁酯和异丁酯在水溶液中的闪光光解产生了一种瞬态物种，通过产物测定和酸碱催化形式加上溶剂同位素对其衰变的影响，确定了该物种，如扁桃酸的烯醇，1.当苯甲酰甲酸酯是闪光光解底物时，烯醇是由苯基羟基乙烯酮水合形成的，5，本身由酯的Norrish II型光消除产生，当苯重氮乙酸为底物时，烯醇是通过重氮酸的去重氮化产生的苯基羧基卡宾 6 的水合形成。扁桃酸的烯醇化速率也通过监测氘从 D2O 溶剂中掺入其 α 位来确定，这些与酮化速率的组合给出了酮-烯醇平衡常数，pKE = 16.19。还测定了作为含氧酸电离的烯醇的酸度常数，p = 6.39，...

  DOI：

  10.1021/ja971774r
• 作为产物：
  描述：

  扁桃酸 在 biphosphate buffer 作用下， 以 水 为溶剂， 生成 扁桃酸烯醇
  参考文献：
  名称：

  水溶液中的扁桃酸酮-烯醇系统。苯羟基乙烯酮和苯羧卡宾水合生成烯醇

  摘要：

  苯重氮乙酸和苯甲酰甲酸的甲酯、正丁酯和异丁酯在水溶液中的闪光光解产生了一种瞬态物种，通过产物测定和酸碱催化形式加上溶剂同位素对其衰变的影响，确定了该物种，如扁桃酸的烯醇，1.当苯甲酰甲酸酯是闪光光解底物时，烯醇是由苯基羟基乙烯酮水合形成的，5，本身由酯的Norrish II型光消除产生，当苯重氮乙酸为底物时，烯醇是通过重氮酸的去重氮化产生的苯基羧基卡宾 6 的水合形成。扁桃酸的烯醇化速率也通过监测氘从 D2O 溶剂中掺入其 α 位来确定，这些与酮化速率的组合给出了酮-烯醇平衡常数，pKE = 16.19。还测定了作为含氧酸电离的烯醇的酸度常数，p = 6.39，...

  DOI：

  10.1021/ja971774r

文献信息

• FOAM MADE FROM MODIFIED POLYPROPYLENE RESIN AND PROCESS FOR THE PRODUCTION THEREOF
  申请人：KANEGAFUCHI KAGAKU KOGYO KABUSHIKI KAISHA

  公开号：EP0841354A1

  公开（公告）日：1998-05-13

  The present invention relates to a foamed article comprising a modified polypropylene resin which is a graft copolymer of a polypropylene resin and an aromatic vinyl monomer and has an average number of the grafted aromatic vinyl chains of not less than 1 in one molecule of the graft copolymer and a weight average molecular weight of the grafted aromatic vinyl chains of not less than 200, and relates to a process for preparation thereof. According to the present invention, the foamed article comprising the polypropylene resin and having a high closed cell content, a high expansion ratio and good external appearance can be provided.

  本发明涉及一种包含改性聚丙烯树脂的发泡制品，改性聚丙烯树脂是聚丙烯树脂和芳香族乙烯基单体的接枝共聚物，接枝芳香族乙烯基链的平均数量在接枝共聚物的一个分子中不小于1，接枝芳香族乙烯基链的重量平均分子量不小于200，本发明还涉及其制备工艺。根据本发明，可以提供由聚丙烯树脂组成的发泡制品，该制品具有高闭孔含量、高膨胀比和良好的外观。
• HOT-MELT ADHESIVE MATERIAL FOR INDUCTION HEATING
  申请人：Kaneka Corporation

  公开号：EP2474586A1

  公开（公告）日：2012-07-11

  The present invention provides a laminate in which a formed article as an adherend is adhered without impairing the external designability and touch of the formed article, and a hot-melt adhesive material which is suitable for dielectric heating that does not cause thermal damage directly to a formed article. Having reached the idea that a configuration might be useful, in which an adhesive having satisfactory adhesiveness to both metal and resin materials is laminated on a metal layer for selectively heating a hot-melt adhesive layer by dielectric heating, the present inventor has made extensive studies and found that an adhesive material in which a layer of an adhesive including a modified polyolefin resin is laminated on a metal layer, is capable of adhesion without impairing the designability of an adherend by induction heating.

  本发明提供了一种层压板，可在其中粘合作为粘合剂的成型物品，而不会损害成型物品的外部可设计性和触感，还提供了一种热熔粘合剂材料，该材料适合电介质加热，不会直接对成型物品造成热损伤。本发明者认为，一种对金属和树脂材料都具有满意粘合性的粘合剂层压在金属层上，通过电介质加热选择性地加热热熔粘合剂层的结构可能是有用的，因此本发明者进行了广泛的研究，发现一种粘合材料，其中包括一层层压在金属层上的改性聚烯烃树脂粘合剂，能够通过感应加热粘合而不损害粘合剂的可设计性。
• SOLAR CELL MODULE
  申请人：Kaneka Corporation

  公开号：EP2498298A1

  公开（公告）日：2012-09-12

  Disclosed herein is a high-performance and highly-reliable solar cell module sealed with a solar cell sealing material which allows solar cell quality to be maintained over a long period of time due to its excellent water vapor barrier properties and adhesion properties and which has excellent recycle properties and module productivity. The solar cell module is sealed with a solar cell sealing material containing an epoxy-modified polyolefin resin composition obtained by introducing an epoxy group-containing monomer by a grafting reaction. The epoxy-modified polyolefin resin composition is preferably obtained by melt-kneading a polyolefin resin with an epoxy group-containing vinyl monomer and an aromatic vinyl monomer in the presence of a radical polymerization initiator.

  本文公开了一种用太阳能电池密封材料密封的高性能、高可靠性太阳能电池组件，这种密封材料具有优异的水蒸气阻隔性能和粘附性能，可长期保持太阳能电池的质量，并具有优异的回收性能和组件生产率。太阳能电池组件用太阳能电池密封材料密封，该材料含有通过接枝反应引入含环氧基团单体而获得的环氧改性聚烯烃树脂组合物。环氧改性聚烯烃树脂组合物最好是在有自由基聚合引发剂存在的情况下，将聚烯烃树脂与含环氧基的乙烯基单体和芳香族乙烯基单体熔融捏合而成。
• CARBON FIBER REINFORCED COMPOSITE MATERIALS
  申请人：Kaneka Corporation

  公开号：EP2508552A1

  公开（公告）日：2012-10-10

  The invention provides a carbon fiber-reinforced composite material including reinforcing fibers which are continuous carbon fibers in the form of a unidirectional (UD) material, a woven fabric, or a knitted fabric, and a matrix resin including a modified polyolefin resin, thereby achieving better adhesion and mechanical strength. The matrix resin forms a polyphase structure having a sea-island structure which has an average island (independent phase) diameter of not greater than 0.5 µm. The composite material includes as a matrix resin a modified polyolefin resin obtained by, for example, graft-modifying a polyolefin resin with a monomer that contains an ethylenic double bond and a polar group in the same molecule; and includes as reinforcing fibers continuous carbon fibers. For example, the fiber-reinforced composite material is obtained by stacking the modified polyolefin resin and carbon fibers in a mold with a predetermined shape, and impregnating the carbon fibers with the modified polyolefin resin in a molten state under pressure, followed by cooling and curing.

  本发明提供了一种碳纤维增强复合材料，包括增强纤维（单向（UD）材料、编织物或针织物形式的连续碳纤维）和基体树脂（包括改性聚烯烃树脂），从而获得更好的附着力和机械强度。基体树脂形成具有海岛结构的多相结构，海岛（独立相）的平均直径不大于 0.5 微米。复合材料包括作为基体树脂的改性聚烯烃树脂，该改性聚烯烃树脂是通过例如用在同一分子中含有乙烯双键和极性基团的单体对聚烯烃树脂进行接枝改性而获得的；还包括作为增强纤维的连续碳纤维。例如，在具有预定形状的模具中堆叠改性聚烯烃树脂和碳纤维，并在压力下以熔融状态将碳纤维与改性聚烯烃树脂浸渍，然后冷却和固化，即可获得纤维增强复合材料。
• ADHESIVE RESIN COMPOSITION AND MOLDED PRODUCTS
  申请人：Kaneka Corporation

  公开号：EP2559747A1

  公开（公告）日：2013-02-20

  The invention has been made focusing on the problems of the prior art. Specifically, the invention aims to provide a hot melt adhesive film which can be used for preparing a laminate at low temperatures, has sufficient adhesion and sufficient heat resistance, and is excellent in workability. Provided is an adhesive resin composition, essentially comprising: a base resin which comprises (A) 30-90 parts by weight of a modified ethylene-olefin copolymer, and (B) 70-10 parts by weight of a styrene thermoplastic elastomer, provided that (A) + (B) equals 100 parts by weight; and (C) a tackifier in an amount of 30-60 parts by weight per 100 parts by weight of the base resin, the modified ethylene-olefin copolymer being one which has been graft-modified with (a) an unsaturated carboxylic acid or a derivative thereof and (b) an aromatic vinyl monomer, comprises 0.1%-5% by weight of (a) the unsaturated carboxylic acid or the derivative thereof, and has a melting point peak in a range of 100-150°C with an enthalpy of crystal fusion of 0.5-10 J/g as determined by DSC.

  本发明是针对现有技术存在的问题而提出的。具体地说，本发明旨在提供一种热熔胶膜，它可用于在低温下制备层压板，具有足够的粘合力和足够的耐热性，并且具有良好的可加工性。本发明提供了一种粘合剂树脂组合物，主要包括基础树脂，包括 (A) 30-90 份（按重量计）改性乙烯-烯烃共聚物和 (B) 70-10 份（按重量计）苯乙烯热塑性弹性体，条件是 (A) + (B) 等于 100 份（按重量计）；(C) 增粘剂，其用量为每 100 份基体树脂含 30-60 份（重量）增粘剂，改性乙烯-烯烃共聚物是用(a)不饱和羧酸或其衍生物和(b)芳香族乙烯基单体接枝改性的乙烯-烯烃共聚物，包括 0.1%-5%（重量百分比）的(a)不饱和羧酸或其衍生物，熔点峰值在 100-150°C 范围内，经 DSC 测定，晶体熔化焓为 0.5-10 J/g。